219.230.128.0/19

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.224.0.0/13
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        219.230.0.0 - 219.231.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Nanjing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:27Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         abuse@cernet.edu.cn
abuse-mailbox:  abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn was validated on 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        abuse@cernet.edu.cn was validated on 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
source:         APNIC

role:           CERNET Helpdesk
address:        CERNET Center
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2020-09-03T09:14:12Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 219.230.128.0/19

Range	ASN	Company	Num of IPs
219.224.0.0/13	AS4538	China Education and Research Network	524,288

BGP prefixes that are contained by 219.230.128.0/19

Range	ASN	Company	Num of IPs
219.230.144.0/20	AS4538	China Education and Research Network	4,096
219.230.144.0/20	AS24361	China Education and Research Network	4,096

Nearby Ranges

BGP prefixes that overlap with 219.230.0.0/16

Range	ASN	Company	Num of IPs
219.224.0.0/13	AS4538	China Education and Research Network	524,288
219.230.64.0/18	AS4538	China Education and Research Network	16,384
219.230.192.0/18	AS4538	China Education and Research Network	16,384
219.230.160.0/19	AS4538	China Education and Research Network	8,192
219.230.48.0/20	AS4538	China Education and Research Network	4,096
219.230.32.0/20	AS4538	China Education and Research Network	4,096
219.230.176.0/20	AS4538	China Education and Research Network	4,096
219.230.144.0/20	AS4538	China Education and Research Network	4,096
219.230.144.0/20	AS24361	China Education and Research Network	4,096
219.230.16.0/20	AS4538	China Education and Research Network	4,096
219.230.51.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

2 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
219.230.158.249	AS4538 China Education and Research Network Center	12.74ms from Shanghai, CN

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
184.179.30.3	AS22773 Cox Communications Inc.	1.25ms from Atlanta, US
221.220.14.131	AS4808 China Unicom Beijing Province Network	4.59ms from Beijing, CN
94.7.153.147	AS5607 Sky UK Limited	11.04ms from London, GB
2.60.155.99	AS12389 PJSC Rostelecom	8.41ms from Novosibirsk, RU
180.145.135.211	AS17511 OPTAGE Inc.	2.10ms from Osaka, JP
133.202.32.179	AS2518 BIGLOBE Inc.	11.47ms from Tokyo, JP
131.147.28.115	AS2527 Sony Network Communications Inc.	2.76ms from Tokyo, JP
75.46.158.67	AS7018 AT&T Enterprises, LLC	2.08ms from Atlanta, US
96.35.77.163	AS20115 Charter Communications LLC	13.18ms from Chicago, US
86.190.15.115	AS2856 British Telecommunications PLC	3.14ms from London, GB
86.150.255.115	AS2856 British Telecommunications PLC	3.80ms from London, GB
159.0.74.83	AS25019 Saudi Telecom Company JSC	4.09ms from Manama, BH
178.81.209.3	AS35819 Etihad Etisalat, a joint stock company	4.20ms from Manama, BH
208.109.203.51	AS26496 GoDaddy.com, LLC	1.01ms from Phoenix, US
112.242.33.19	AS4837 CHINA UNICOM China169 Backbone	7.24ms from Qingdao, CN
3.220.104.179	AS14618 Amazon.com, Inc.	0.19ms from Reston, US
177.62.179.83	AS26599 TELEFÔNICA BRASIL S.A	2.49ms from Sao Paulo, BR
201.0.23.67	AS27699 TELEFÔNICA BRASIL S.A	15.98ms from Sao Paulo, BR
185.98.230.3	AS200696 Alands Penningautomatforening	3.11ms from Stockholm, SE
114.183.197.227	AS4713 NTT Communications Corporation	17.51ms from Tokyo, JP
219.155.109.83	AS4837 CHINA UNICOM China169 Backbone	1.95ms from Zhengzhou, CN
23.97.208.163	AS8075 Microsoft Corporation	0.20ms from Amsterdam, NL
184.16.78.83	AS5650 Frontier Communications of America, Inc.	4.56ms from Chicago, US
73.77.13.3	AS7922 Comcast Cable Communications, LLC	13.04ms from Dallas, US
86.61.31.163	AS5603 Telekom Slovenije, d.d.	0.97ms from Ljubljana, SI

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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